Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 01/11/2021   18:39:30   (   0.08,-128.13) (  -0.27,-126.43)  192.99                80
 01/12/2021   06:58:13   (  -0.05,-128.10) (  -0.83,-131.62)  401.42                80
 01/14/2021   06:46:01   (  -0.06,-128.06) (  -0.18,-128.66)   68.71                80
 01/16/2021   06:36:29   (  -0.07,-128.02) (   0.41,-125.70)  263.91                80
 01/16/2021   18:55:04   (   0.03,-128.04) (   0.65,-130.86)  321.61                80
 01/18/2021   18:45:32   (   0.04,-128.00) (  -0.00,-127.91)   11.15                80
 01/20/2021   18:33:19   (   0.05,-127.96) (  -0.60,-124.94)  343.00                80
 01/21/2021   06:52:03   (  -0.01,-127.92) (  -0.49,-130.13)  252.29                80
 01/23/2021   06:42:31   (  -0.01,-127.87) (   0.17,-127.18)   79.17                80